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公开(公告)号：US20220404324A1
公开(公告)日：2022-12-22
申请号：US17804951
申请日：2022-06-01
Applicant: Honeywell International Inc.
Inventor： Xiangcai HE , Chuang HUANG , Li LIU , Yong WANG
IPC: G01N33/00
Abstract: Methods, apparatuses and systems for calibrating gas detectors are disclosed. An example calibration apparatus may have a gas supply element configured to provide a background gaseous substance within at least a portion of the calibration apparatus, a nebulizing element configured to generate the testing gaseous substance by transforming a testing solution in conjunction with the background gaseous substance, a pressure control element configured to regulate airflow in order to maintain a constant air pressure within the at least a portion of the calibration apparatus, and a controller component in electronic communication with the gas supply element, the nebulizing element and the pressure control element.
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2.发明公开公开(公告)号：US20240068999A1
公开(公告)日：2024-02-29
申请号：US18450820
申请日：2023-08-16
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Chuang HUANG
IPC: G01N33/00
CPC classification number: G01N33/0047 , G01N33/0062
Abstract: A method, apparatus, and computer program product for detecting volatile organic compounds (VOCs) in a gas is provided. An example VOC detector may include a processing device and a detecting region. The detecting region may further include a first interdigital pole electrically connected to a separation voltage source, a second interdigital pole electrically connected to a switch, and an ionization device configured to interact with the gas within the detecting region to create a plurality of ionized gas molecules. To facilitate detection of VOCs, the switch may alternate the connection of the second interdigital pole between a compensation voltage source and the processing device. The processing device may determine a number of volatile organic compounds in the gas based at least in part on a number of ionized gas molecules that contact the second interdigital pole while the second interdigital pole is electrically connected to the processing device.
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公开(公告)号：US20210003542A1
公开(公告)日：2021-01-07
申请号：US16916287
申请日：2020-06-30
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Chuang HUANG , Tengfei ZHANG , Bing CHEN , Feng LIANG
Abstract: Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.
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公开(公告)号：US20230263404A1
公开(公告)日：2023-08-24
申请号：US18168251
申请日：2023-02-13
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Zhixiong HOU , Rui LUO , Linan ZHAO , Matthew KENDALL , Yuyan WANG , Chuang HUANG
CPC classification number: A61B5/02042 , A61B5/0082 , A61B5/746 , A61B2562/223
Abstract: Devices, apparatuses, methods, and computer program products are provided for hemorrhage detection. An example sensing device for hemorrhage detection includes a blood detection layer that includes a permeable film and one or more optical fibers supported by the permeable film. The device also includes an optical sensor that includes a light source that emits light and an optical receiver in optical communication with the light source via the one or more optical fibers. The optical receiver generates optical data responsive to the light emitted by the light source and received by the optical receiver via the one or more optical fibers indicative of at least a wavelength of the light. The device further includes a controller operably coupled with the optical sensor that receives the optical data generated by the optical receiver in response to the emitted light and determines an amount of blood based upon the optical data.
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5.发明申请公开(公告)号：US20200373147A1
公开(公告)日：2020-11-26
申请号：US16881712
申请日：2020-05-22
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Chuang HUANG , Tengfei ZHANG , Bing CHEN , Feng LIANG
Abstract: Methods, apparatuses, and systems for providing an alternating current (AC) voltage supply for a photoionization detector lamp from a direct current (DC) voltage source are provided. An example apparatus may include a DC voltage to DC voltage (DC/DC) converter circuitry, and a feedback circuitry that is electronically coupled to the DC/DC converter circuitry and converts a reference AC voltage to a feedback DC voltage for the DC/DC converter circuitry. In some examples, the feedback circuitry may be electronically coupled to a DC voltage to AC voltage (DC/AC) converting circuitry to obtain the reference AC voltage.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20250035557A1
公开(公告)日：2025-01-30
申请号：US18768699
申请日：2024-07-10
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Yan YU , Chuang HUANG , Zhixiong HOU , Jiangtao LIU , Xiang HE , Yongfang HUANG , Linan ZHAO
Abstract: Methods, apparatuses, and systems for determining a concentration of a target gas in a sample gas. An example method of preparing a replaceable testing material for detecting a target gas in a sample gas may include preparing a solution comprising a solute and a solvent, wherein the solute comprises o-tolidine; introducing a testing material substrate to the prepared solution for a period of time; and removing at least a portion of the solvent from the testing material substrate such that the testing material substrate comprises at least a portion of the o-tolidine, and thereby forming the replaceable testing material for detecting the target gas in the sample gas.
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公开(公告)号：US20220003729A1
公开(公告)日：2022-01-06
申请号：US17285335
申请日：2019-11-01
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Chuang HUANG , Jianli LIU , Li LIU
IPC: G01N33/00
Abstract: The gas detector calibration system comprises a control unit, a temperature regulation assembly, a pump, and a temperature sensor. The temperature regulation assembly has an inlet and an outlet, and the pump has a pump inlet and a pump outlet. The outlet of the temperature regulation assembly is coupled to the pump inlet of the pump. The temperature regulation assembly receives ambient air through the inlet, regulates a temperature of the ambient air, and supplies the ambient air to the pump through the outlet. The pump supplies the ambient air to a gas detector for regulating a temperature of the gas detector. The temperature sensor detects the temperature and sends a signal indicative of the temperature to the control unit. The control unit determines whether the temperature is within a predefined temperature range, when within the predefined temperature range, the gas detector is calibrated using a calibration gas.
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公开(公告)号：US20240255479A1
公开(公告)日：2024-08-01
申请号：US18633261
申请日：2024-04-11
Applicant: Honeywell International Inc.
Inventor： Xiangcai HE , Chuang HUANG , Li LIU , Yong WANG
CPC classification number: G01N33/0006 , G01M3/38
Abstract: Methods, apparatuses and systems for calibrating gas detectors are disclosed. An example calibration apparatus may have a gas supply element configured to provide a background gaseous substance within at least a portion of the calibration apparatus, a nebulizing element configured to generate the testing gaseous substance by transforming a testing solution in conjunction with the background gaseous substance, a pressure control element configured to regulate airflow in order to maintain a constant air pressure within the at least a portion of the calibration apparatus, and a controller component in electronic communication with the gas supply element, the nebulizing element and the pressure control element.
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公开(公告)号：US20240248070A1
公开(公告)日：2024-07-25
申请号：US18628583
申请日：2024-04-05
Applicant: Honeywell International Inc.
Inventor： Chuang HUANG , Jianli LIU , Li LIU
IPC: G01N33/00
CPC classification number: G01N33/0006 , G01N33/0016
Abstract: A calibration system for calibrating a gas detector includes a control unit and a temperature regulation assembly electrically connected with the control, a temperature sensor electrically connected with the control unit, a set of valves comprising a first valve, a second valve, and a third valve, and a feedback conduit. The control unit is configured to determine whether a temperature of the gas detector is within a predefined temperature range and calibrate the gas detector in an instance in which the temperature is within the predefined temperature range.
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公开(公告)号：US20230408472A1
公开(公告)日：2023-12-21
申请号：US18241107
申请日：2023-08-31
Applicant: Honeywell International Inc.
Inventor： Chuang HUANG , Tengfei ZHANG , Bing CHEN , Feng LIANG
CPC classification number: G01N33/0026 , G01N27/66 , G01N33/0029
Abstract: Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.
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